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SubjectRe: [PATCH v3 1/1] DM: inplace compressed DM target
Hi Ram,

[auto build test WARNING on dm/for-next]
[also build test WARNING on v4.10-rc6 next-20170130]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Ram-Pai/DM-inplace-compressed-DM-target/20170131-154811
base: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
config: cris-allyesconfig (attached as .config)
compiler: cris-linux-gcc (GCC) 6.2.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=cris

All warnings (new ones prefixed by >>):

drivers/md/dm-inplace-compress.c: In function 'dm_icomp_handle_read_decomp':
>> drivers/md/dm-inplace-compress.c:1580:41: warning: passing argument 3 of 'dm_icomp_bio_copy' makes pointer from integer without a cast [-Wint-conversion]
dm_icomp_bio_copy(req->bio, bio_off, empty_zero_page,
^~~~~~~~~~~~~~~
drivers/md/dm-inplace-compress.c:1133:13: note: expected 'void *' but argument is of type 'long unsigned int'
static void dm_icomp_bio_copy(struct bio *bio, off_t bio_off, void *buf,
^~~~~~~~~~~~~~~~~
drivers/md/dm-inplace-compress.c:1593:40: warning: passing argument 3 of 'dm_icomp_bio_copy' makes pointer from integer without a cast [-Wint-conversion]
dm_icomp_bio_copy(req->bio, bio_off, empty_zero_page,
^~~~~~~~~~~~~~~
drivers/md/dm-inplace-compress.c:1133:13: note: expected 'void *' but argument is of type 'long unsigned int'
static void dm_icomp_bio_copy(struct bio *bio, off_t bio_off, void *buf,
^~~~~~~~~~~~~~~~~
In file included from drivers/md/dm-inplace-compress.c:12:0:
drivers/md/dm-inplace-compress.c: In function 'dm_icomp_status':
drivers/md/dm-inplace-compress.c:2090:10: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'long long int' [-Wformat=]
DMEMIT("%lu %lu %lu",
^
include/linux/device-mapper.h:577:46: note: in definition of macro 'DMEMIT'
0 : scnprintf(result + sz, maxlen - sz, x))
^
drivers/md/dm-inplace-compress.c:2090:10: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'long long int' [-Wformat=]
DMEMIT("%lu %lu %lu",
^
include/linux/device-mapper.h:577:46: note: in definition of macro 'DMEMIT'
0 : scnprintf(result + sz, maxlen - sz, x))
^
drivers/md/dm-inplace-compress.c:2090:10: warning: format '%lu' expects argument of type 'long unsigned int', but argument 6 has type 'long long int' [-Wformat=]
DMEMIT("%lu %lu %lu",
^
include/linux/device-mapper.h:577:46: note: in definition of macro 'DMEMIT'
0 : scnprintf(result + sz, maxlen - sz, x))
^

vim +/dm_icomp_bio_copy +1580 drivers/md/dm-inplace-compress.c

1564 dm_icomp_release_comp_buffer(io);
1565 req->result = -EIO;
1566 return;
1567 }
1568
1569 len = min_t(ssize_t,
1570 max_t(ssize_t, decomp_len - src_off, 0),
1571 max_t(ssize_t, bio_len - dst_off, 0));
1572
1573 dm_icomp_bio_copy(req->bio, dst_off,
1574 io->decomp_data + src_off, len, false);
1575
1576 /* io range in all_io list is ordered for read IO */
1577 while (bio_off < dst_off) {
1578 ssize_t size = min_t(ssize_t, PAGE_SIZE,
1579 dst_off - bio_off);
> 1580 dm_icomp_bio_copy(req->bio, bio_off, empty_zero_page,
1581 size, false);
1582 bio_off += size;
1583 }
1584
1585 bio_off = dst_off + len;
1586 dm_icomp_release_decomp_buffer(io);
1587 dm_icomp_release_comp_buffer(io);
1588 }

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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